22 citations · 50 across the 4 of their papers we have counts for
4 papers
Session-Based Hotel Recommendations: Challenges and Future Directions
Jens Adamczak, Gerard-Paul Leyson, Peter Knees +5
In the year 2019, the Recommender Systems Challenge deals with a real-world task from the area of e-tourism for the first time, namely the recommendation of hotels in booking sessi…
Carbon and Oxygen abundances across the Hertzsprung gap
Jens Adamczak, David L. Lambert
We derived atmospheric parameters and spectroscopic abundances for C and O for a large sample of stars located in the Hertzsprung gap in the Hertzsprung-Russell Diagram in order to…
Atmospheric composition of weak G band stars: CNO and Li abundances
Jens Adamczak, David L. Lambert
We determined the chemical composition of a large sample of weak G band stars -- a rare class of G and K giants of intermediate mass with unusual abundances of C, N, and Li. We hav…
Chandra grating spectroscopy of three hot white dwarfs
J. Adamczak, K. Werner, T. Rauch +3
High-resolution soft X-ray spectroscopic observations of single hot white dwarfs are scarce. With the Chandra Low-Energy Transmission Grating, we have observed two white dwarfs, on…